Regenerator.



J. G. DAVIS. REGENERATOR.

J. C. DAVIS.

RBGBNBRATOR. APPLIoATloN FILED MARl 2a, 1914.

- Patented Jan'. 12, 1915.

2 SHEETS-SHEET 2.

, entran santas Parana ernten.

C. DIAVIS, 0F HINSDALE, ILLINOIS, ASSIGNOR TO AMERICAN STEEL IEOUNLDRIES,v

OF NEW YORK, N. Y., A CORPORATIONOF NEW JERSEY.

REGENERATOR.

Specification of Letters Patent.

, rammed Jan. i2, i915.

Application led March 23, 1914'. Serial No. 82,532.

To all whom it may concern:

Be it known that I, JAMES C. DAVIS, a citizen of the United States, and resident of Hinsdale, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Regenerators, of which the following is a speciiication.

My invention relates to air or gas re-` generators and has'particular reference to a novel baliie plate construction.

In the operation of open hearth furnaces it is a well known practice to regenerate either or both the gas and air prior to admitting the same into the combustion space the arrangement being such that the flow of gases is reversed at intervals allowing the products of combustion to pass through and transfer portions of their heat to a regenerator which heat will later be transmitted to air or gas passing throughl such re'- generator in the reverse direction.

In the later development of open hearth furnaces it has been found desirable to use comminuted coal, this substancel being blown into the furnace in suchmanner as to suitably combine with oxygen to form a combustible mixture. While this makes a not undesirable fuel there is of necessity a residue of ash which is carried into the down-takes and deposits in the checker-work of the regenerators. As ordinarily constructed this seriously interferes with the operation of the regenerators and as no provision is made for cleaning the checkerwork the point is soon reached when the furnace must be shut down for repairs.

My invention contemplates the construction of the regenerator chamber on a somewhat different principle. In my construction I provide a regenerator chamber within which a plurality of baies are located,

these baies being constructed of a 4material which will absorb heat from the outgoing gases, and, such outgoing ,gases being compelled to follow a tortuous path, will transfer the required amount of heat to the baffles. In order to provide an increased radiating surfaceI prefer to construct the baflles-with alternate bricks projecting for a portion of their length from the 4plane of the wall. Thus the supercial area in contact with the outgoing gases is very largely increased and lfnade comparable to presented b y the usual checkersection on the line 2 2 of Fig. 1, and Fig.v

3 is a horizontal section through the construction shown in Figs. 1 and 2.

Referring more particularly to the accompanying drawings, it will be seen that my regenerator may consist of side and end walls 10 and' 11, the side walls being provided with suitable manholes 12, at intervals near theibottom thereof and with similar manholes 13, at a point near the .top thereof. These holes are provided in order to give access lto the interior of the regenerator chamber for the purpose of dislodging and removing any deposits of ash. The top wall 14,- may be arched or of other con'- struction, the roof being providedwith a Hue opening 15, communicating` with the furnace.' A stack flue 16, communicates with the regenerator at the opposite end.

Located within the chamber formed by the walls Al0, 11, and roof 14, are a plurality of baiies 17, preferably constructed of brick, the bricks being laid in such manner that portions of'alternate bricks are projected outside the plane of the body of the bafe, thus providing a much greater superficial area exposed to the gas or air passing through the regenerator.

As shown in Fig. 3, alternate courses of bricks may consist in two and three bricks respectively, thetwo bricks 18, serving to outline the` width of the baiile and to bind i of baes need not be followed in order to secure the desired result. rlhey might be arranged in other manners and a large area might be secured by other arrangements of the bricks. All such modifications as are Within the scope of my claims l consider Within the spirit of my invention.

I claim:

l. ln a regenerator, the combination of walls inclosing a chamber, and bales lo* cated in said chamber, said baffles being provided with a relatively large number of surface projections whereby an increased superficial area is secured, substantially as described.

2. ln a regenerator, the combination of walls inclosing av chamber, said chamber being provided with entrance and exit openings, and battles located in said chamber, said baffles being provided with a great number of surface projections whereby a relatively large .supercial area is presented, said walls being provided with openings through which access may be had to said baiiles :for

niagara the purpose of cleaning the same, substantially as described.

3. In a regenerator,l the combination of walls inclosing a chamber, baflies located in said chamber, said baffles being constructed of bricks, certain of the bricks projecting outside the normal plane of the baies and providing an increased regenerative surtace, substantially as described.

4. In a regenerator, the combination of walls inclosing a chamber, bailies located in said chamber, said baffles being constructed of bricks, certain of the bricks projecting outside the normal plane of the bandes providing an increased regenerative surface, said Walls being provided with openings through which access may be had to said balles for the purpose oi? cleaning 'the same, substantially as described.

JAMES C. DAVES.

l/l/'itnesses T. LYNN, Gro. G. Finora.r 

